- Lumber mills
- Cabinetry wood shops
- School wood shops
Dust from industrial woodworking machinery:
- Belt Sanders
- Chop Saws
NFPA approved explosion vents should be used on all wood applications. The collector should be located outside whenever possible or near an exterior wall with the explosion vents ducted per NFPA outside the building. Read the informative OSHA Hazard Information Bulletin on the subject of improper installation of wood dust collectors in the woodworking industry.
Sprinkler kits should also be installed in the collectors. If equipment being aspirated has the potential to produce sparks, such as a high speed sander, spark detection/suppression systems should be considered. It is best to have the customer check with his Insurance carrier and follow NFPA 654 Standard for the Prevention of Fire and Dust Explosions from the Manufacturing, Processing and Handling of Combustible Particulate Solids, 2000 Edition.
Most applications will have several different types of wood working machinery that create very different types of dust. Molders, lathes, and planners will create long curly strings of material or shavings, especially on softer woods like yellow pine. High speed belt sanders will create a very fine dust that may be referred to as wood flour. Chop saws and table saws will create saw dust which is typically the easiest dust to handle.
On all wood applications with a Farr Gold Series the HemiPleat® cartridges should be used. If 100 percent of the material is from a high speed sander or saw, over bags may help increase the life of the cartridge, but are not a necessity.
Overbags should always be used with molders, planners and lathes. The air to cloth ratio with HemiPleat cartridges should be 2:1. The hopper discharge should be no less than 14" square. Machined airlocks should never be used, but a fabricated flex type airlock will work well on this type of material. If a high pressure pneumatic convey system is used to take the material away from the collector, a wood feeder should be considered. A wood feeder is very similar to a machined airlock but is much heavier and can shear the material as it enters the feeder.
Gold Cone cartridges in dust collector with overbags.
One last note in designing the system. CNC routers require 6,000 to 7,000 FPM at the head so the static pressure loss at these types of machines can be 7-10" W.C. A booster fan may be needed at the machine to meet the airflow and static pressure demands.
Benefits of the Farr Gold Series
- The vertical arrangement of the cartridges and wide spacing between cartridges keeps high loading dust from bridging between cartridges and plugging the collector.
- Cartridge overbags keeps the large shavings out of the pleat of the cartridge while allowing the finer material through to be filtered by the cartridge.
- The channel baffle inlet removes a high percentage of the dust before it gets to the cartridges, reducing the loading on the media and eliminating the need of a cyclone before the collector.
- The cross flow of air from the side mounted channel baffle inlet negates any can or interstitial velocity issues. Due to the cross flow of air across the cartridges there is no re-entrainment of material back into the cartridges.
- One cartridge will replace more than 10 bags vs a baghouse.
- High efficiency filters stop 99.99% at 0.5µ of the dust! Special treated filter media repels the fine particle for lower pressure drop and long filter life.
- Special treated filter media repels the fine particle for lower pressure drop and long filter life.
- Gold Cone® provides 25% more media for long service life.
We were skeptical at first of a cartridge collector on wood dust, we had always used bags. But we have to say that the Farr Gold Series cartridge collector is working great and has exceeded our expectations.
-Elvin Hurst, Jr., Kountry Kraft Kitchens
The Farr GS12 industrial dust collector on woodworking at Houston Hardwoods.
- Colony Display Systems
- Vigilant, Inc.
- Wood Technology
- New England Wood Craft
- Weitco Stair Products
- Munford High School
- Sears Trostel Lumber
- Hill-Rom Company
- Fairport Boces
- Garmin International
- Rohde Bros.
- Ledegar Sheet
- Greene, Tweed & Co.
- Kountry Kraft Kitchens
- Cabrillo Cabinets
- Haworth Furniture
- Bertch Cabinets
- Princeton University
GS16 collecting MDF, plywood, and Particle Board dust on a Woodworking application